SciShow
How Do We Know How Old the Earth Is?
In the wake of World War 2, Clair Patterson embarked on a scientific quest to find out how old the Earth really is. His hard work paid off, but it also revealed a modern danger.
Curated Video
Carbon The Exceptional Element Looking into Its Unique Qualities
Carbon and silicon are the predominant elements in the earth's crust, whereas germanium is present in minimal quantities. Lead and tin are present in minuscule quantities. Carbon exists in various forms, including coal, diamond,...
FuseSchool
Structure Of The Earth & Its Different Layers
Structure Of The Earth & Its Different Layers | Environmental Chemistry | Chemistry | FuseSchool Learn the basics about Structure of the Earth and the composition its different layers. How was the Earth created? What elements is it made...
American Chemical Society
How Do We Know the Age of the Earth?
Some 4.565 billion candles would be needed for a birthday cake for Earth. Young scientists view a video to learn about historical attempts to determine the age of Earth. They see how advances in radioactive dating led to the currently...
Fuse School
Structure and Composition of the Earth
Why is Earth different from other planets? What makes it so special, anyway? It's only fitting to delve into how the "parent" rock was formed in the first installment of a seven-part series about rocks and rock formation. Amateur...
Ricochet Science
Isotopes
Altering the subatomic nature of an atom affects its properties. The video illustrates the idea of an isotope using Carbon-12, Carbon-13, and Carbon-14 as examples.
Educreations
Uses of Radioactivity
Radioactivity is often perceived as dangerous and a threat to our well-being, but you may be surprised at the different applications of this natural chemical process. From the smoke detectors in our homes to treatments for cancer,...
Other
Radioactive Dating
Have you ever wondered how paleontologists and geologists determine the age of fossils or geologic events that occurred in the past? Explore the processes of radioactive decay and radioactive dating. The chemistry of half-lives of...
Khan Academy
Khan Academy: Measuring Age on Earth: Chronometric Revolution
Discussion of the relatively recent changes in our ability as a species to shine light on our deep past. [9:53]
Khan Academy
Khan Academy: Measuring Age on Earth: K Ar Dating Calculation
Work through a calculation for K-Ar dating this video lecture. Understand the mathematics in estimating age using radioactive dating. [11:06]